. 2015 Mar 20;17(3):e71. doi: 10.2196/jmir.3582
©Christine Knaevelsrud, Janine Brand, Alfred Lange, Jeroen Ruwaard, Birgit Wagner. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 20.03.2015.
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Figure 2.
Screenshot Startpage.